{"id":"CVE-2026-93546","title":"Integer overflow in mod_dav_fs in Apache HTTP Server through 2.4.68 allows an authenticated WebDAV client with write access to crash worker processes and persistently corrupt a directory's property database via PROPPATCH requests declari…","summary":"Integer overflow in mod_dav_fs in Apache HTTP Server through 2.4.68 allows an authenticated WebDAV client with write access to crash worker processes and persistently corrupt a directory's property database via PROPPATCH requests declari…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-190"],"vendor":"Apache Software Foundation","product":"Apache HTTP Server","affected":["apache_http_server <= 2.4.68"],"published":"2026-10-01","updated":"2026-10-01","sourceUpdated":"2026-10-01T21:17:26.023","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93546","references":[{"url":"https://httpd.apache.org/security/vulnerabilities_24.html","label":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/10/01/30","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93546.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-93546"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2544798"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93546"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93546"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-01T19:38:29.562581Z"},"ingestedAt":"2026-10-01T18:55:42.366Z","scores":{"nvd":8.8,"vendor":5.4},"epss":0.00342,"epssPercentile":0.25436,"slug":"CVE-2026-93546","body":"## Overview\n\nInteger overflow in mod_dav_fs in Apache HTTP Server through 2.4.68 allows an authenticated WebDAV client with write access to crash worker processes and persistently corrupt a directory's property database via PROPPATCH requests declaring many XML namespaces.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Hardened Images · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-01 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93546.json)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":214659,"id":"CVE-2026-93546","ts":1790884800038,"field":"cvss","old":null,"new":"8.8"},{"seq":214658,"id":"CVE-2026-93546","ts":1790884800038,"field":"severity","old":"none","new":"high"}]}